Continuity mistake: In S.O.S., Locke is trying to remember the map he saw on the blast door. He ignores the blaring alarm until Jack reminds him, and Locke inputs the code and hits EXECUTE. The camera cuts to a shot of the numbers resetting, and then back to Locke, and he takes his finger off the EXECUTE button a second time.

Continuity mistake: In episode 2-19 SOSWhen Bernard is talking to Rose after she questions him in front of the group about his "sign" when the close ups are on Bernard you can see that it is raining quite heavily in the background, but when it's close up on Rose it is not raining. It doesn't begin to rain in the episode until much later.

Benjamin Linus: Your flight crashed on September 22,2004. Today is November 29th. That means you've been on this island for sixty-nine days. And yes, we do have contact with the outside world, Jack. That's how we know that during those sixty-nine days, your fellow Americans re-elected George W. Bush, Christopher Reeve has passed away, Boston Red Sox won the World Series.[Jack begins to laugh.] Benjamin Linus: What?Jack Shepard: [Still laughing.] If you wanted me to believe that, you probably should have picked somebody else besides the Red Sox.Bejmain Linus: No, they were down 3-0 against the Yankees in the Championship Series and then won eight straight.Jack Shepard: [Skeptically.] Sure, sure. Of course they did.[Ben turns on a VCR.]Joe Buck: Back to Foulke... Red Sox fans have longed to hear it! The Boston Red Sox are world champions! A clean sweep of the St. Louis Cardinals, and the Red Sox celebrate in the middle of the diamond here at Busch Stadium.